AT91SAM7S256D-AU Atmel, AT91SAM7S256D-AU Datasheet - Page 372

• Manufacturer Part Number: AT91SAM7S256D-AU
• Description: ARM Microcontrollers - MCU 256K Flash SRAM 64K ARM based MCU
• Manufacturer: Atmel
• Series: SAM7S256r

Specifications of AT91SAM7S256D-AU

• Rohs: yes
• Core: ARM
• Processor Series: AT91SAM
• Data Bus Width: 16 bit/32 bit
• Maximum Clock Frequency: 55 MHz
• Program Memory Size: 256 KB
• Data Ram Size: 64 KB
• On-chip Adc: Yes
• Operating Supply Voltage: 3 V to 3.6 V
• Operating Temperature Range: - 40 C to + 85 C
• Package / Case: LQFP-64
• Mounting Style: SMD/SMT
• Interface Type: 2-Wire, I2S, SPI, USART
• Length: 7 mm

31.6.3.4
When a character reception is completed, it is transferred to the Receive Holding Register (US_RHR) and the
RXRDY bit in the Status Register (US_CSR) rises. If a character is completed while the RXRDY is set, the OVRE
(Overrun Error) bit is set. The last character is transferred into US_RHR and overwrites the previous one. The
OVRE bit is cleared by writing the Control Register (US_CR) with the RSTSTA (Reset Status) bit at 1.
Figure 31-13. Receiver Status
Baud Rate
Receiver Operations
US_RHR
RXRDY
US_CR
OVRE
Clock
Read
Write
RXD
Start
Bit
D0
D1
D2
D3
D4
D5
D6
D7
Parity
Bit
Stop
Bit
Start
Bit
D0
D1
D2
D3
D4
D5
SAM7S Series [DATASHEET]
D6
D7
Parity
Bit
Stop
Bit
6175M–ATARM–26-Oct-12
RSTSTA = 1
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